SCSI device not responding

[Sergio Sierra]

My ML150 has raid1 and raid5 arrays, but the event occurse every 30 minutes...

Event Type: Error
Event Source: aac
Event Category: None
Event ID: 9
Date: 16-Nov-06
Time: 8:08:30
User: N/A
Computer: VPDCZ9
Description:
The device, \Device\Scsi\aac1, did not respond within the timeout period.
Data:
0000: 00 00 10 00 01 00 60 00 ......`.
0008: 00 00 00 00 09 00 04 c0 .......À
0010: 01 01 00 50 00 00 00 00 ...P....
0018: 00 00 00 00 00 00 00 00 ........
0020: 00 00 00 00 00 00 00 00 ........
0028: 00 00 00 00 00 00 00 00 ........
0030: 00 00 00 00 07 00 00 00 ........

with adaptec storage manager i have
November 15, 2006 8:27:51 PM GMT-06:00 INF 307:A01C-S--L01 vpdcz9 Verifying: controller 1, logical device 1 ("RAID1").
November 15, 2006 10:44:43 PM GMT-06:00 INF 308:A01C-S--L01 vpdcz9 Verify complete: controller 1, logical device 1 ("RAID1").
November 16, 2006 8:10:10 AM GMT-06:00 WRN 301:A01C-S--L01 vpdcz9 Logical device is degraded: controller 1, logical device 1 ("RAID1")
November 16, 2006 8:10:10 AM GMT-06:00 ERR 401:A01C0S00L-- vpdcz9 Failed drive: controller 1, channel 0, SCSI device ID 0
November 16, 2006 8:10:15 AM GMT-06:00 INF 345:A01C-S--L01 vpdcz9 Logical device is normal: controller 1, logical device 1 ("RAID1")

I just want to be sure if the bad part is my controller (2120S) or my harddrives

[Rajashekar Chintakunta]

Hi Sergio,

As per the logs it should be the harddrive that has failed.

Logical device is degraded: controller 1, logical device 1 ("RAID1")

The above message confirms that the controller is fine but the Raid 1 is degraded, i.e one of the harddisk has failed.

Failed drive: controller 1, channel 0, SCSI device ID 0

This message indicates that the harddisk installed in controller 1, channel 0, SCSI device ID 0 has failed.

Reseat the harddisk and check if it rebuilds the raid else replace the harddisk.

Regards,
Raj.

[Sergio Sierra]

oh yeah, but at the moment i have a report that RAID5 is degraded, for scsi id 2 :(
unfortunelly i cant reset so much times, so much services depending on this server.

I want to be sure the controller is really fine.

[e4services]

My experence with the physical drives tells me you have a drive that keeps spinning down then spinning back up. We have seem this as a failure mode. What ever causes the effect, overheat, the drive's control board, the drive will go on and off line intermittantly.
Replace the drive, not the controller